Ultrafast, polarized, single-photon emission from m-plane InGaN Quantum Dots on GaN nanowires
We demonstrate single photon emission from self-assembled m-plane InGaN quantum dots (QDs) embedded on the side-walls of GaN nanowires. A combination of electron microscopy, cathodoluminescence, time-resolved µPL and photon autocorrelation experiments give a thorough evaluation of the QDs structural...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
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American Chemical Society
2016
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| _version_ | 1797053654924001280 |
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| author | Puchtler, T Wang, T Ren, C Tang, F Oliver, R Taylor, R Zhu, T |
| author_facet | Puchtler, T Wang, T Ren, C Tang, F Oliver, R Taylor, R Zhu, T |
| author_sort | Puchtler, T |
| collection | OXFORD |
| description | We demonstrate single photon emission from self-assembled m-plane InGaN quantum dots (QDs) embedded on the side-walls of GaN nanowires. A combination of electron microscopy, cathodoluminescence, time-resolved µPL and photon autocorrelation experiments give a thorough evaluation of the QDs structural and optical properties. The QD exhibits anti-bunched emission up to 100 K, with a measured autocorrelation function of g^((2) ) (0) = 0.28 (0.03) at 5 K. Studies on a statistically significant number of QDs show that these m-plane QDs exhibit very fast radiative lifetimes (260 ± 55 ps) suggesting smaller internal fields than any of the previously reported c-plane and a-plane QDs. Moreover, the observed single photons are almost completely linearly polarized aligned perpendicular to the crystallographic c-axis with a degree of linear polarization of 0.84 ± 0.12. Such InGaN QDs incorporated in a nanowire system meet many of the requirements for implementation into quantum information systems and could potentially open the door to wholly new device concepts. |
| first_indexed | 2024-03-06T18:46:43Z |
| format | Journal article |
| id | oxford-uuid:0ec2786f-c9a2-424b-aed4-191f3d8b0cc0 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:46:43Z |
| publishDate | 2016 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:0ec2786f-c9a2-424b-aed4-191f3d8b0cc02022-03-26T09:47:40ZUltrafast, polarized, single-photon emission from m-plane InGaN Quantum Dots on GaN nanowiresJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0ec2786f-c9a2-424b-aed4-191f3d8b0cc0Symplectic Elements at OxfordAmerican Chemical Society2016Puchtler, TWang, TRen, CTang, FOliver, RTaylor, RZhu, TWe demonstrate single photon emission from self-assembled m-plane InGaN quantum dots (QDs) embedded on the side-walls of GaN nanowires. A combination of electron microscopy, cathodoluminescence, time-resolved µPL and photon autocorrelation experiments give a thorough evaluation of the QDs structural and optical properties. The QD exhibits anti-bunched emission up to 100 K, with a measured autocorrelation function of g^((2) ) (0) = 0.28 (0.03) at 5 K. Studies on a statistically significant number of QDs show that these m-plane QDs exhibit very fast radiative lifetimes (260 ± 55 ps) suggesting smaller internal fields than any of the previously reported c-plane and a-plane QDs. Moreover, the observed single photons are almost completely linearly polarized aligned perpendicular to the crystallographic c-axis with a degree of linear polarization of 0.84 ± 0.12. Such InGaN QDs incorporated in a nanowire system meet many of the requirements for implementation into quantum information systems and could potentially open the door to wholly new device concepts. |
| spellingShingle | Puchtler, T Wang, T Ren, C Tang, F Oliver, R Taylor, R Zhu, T Ultrafast, polarized, single-photon emission from m-plane InGaN Quantum Dots on GaN nanowires |
| title | Ultrafast, polarized, single-photon emission from m-plane InGaN Quantum Dots on GaN nanowires |
| title_full | Ultrafast, polarized, single-photon emission from m-plane InGaN Quantum Dots on GaN nanowires |
| title_fullStr | Ultrafast, polarized, single-photon emission from m-plane InGaN Quantum Dots on GaN nanowires |
| title_full_unstemmed | Ultrafast, polarized, single-photon emission from m-plane InGaN Quantum Dots on GaN nanowires |
| title_short | Ultrafast, polarized, single-photon emission from m-plane InGaN Quantum Dots on GaN nanowires |
| title_sort | ultrafast polarized single photon emission from m plane ingan quantum dots on gan nanowires |
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